72 lines
1.9 KiB
C
72 lines
1.9 KiB
C
#ifndef MANGO_OBJECT_H_
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#define MANGO_OBJECT_H_
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#include <mango/flags.h>
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#include <mango/locks.h>
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#include <mango/status.h>
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#include <mango/vm.h>
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#include <stddef.h>
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#ifdef __cplusplus
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extern "C" {
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#endif
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#define OBJECT_MAGIC 0xBADDCAFE
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#define OBJECT_NAME_MAX 64
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#define OBJECT_PATH_MAX 256
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#define OBJECT_CAST(to_type, to_type_member, p) \
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((to_type *)((uintptr_t)p) - offsetof(to_type, to_type_member))
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#define OBJECT_C_CAST(c_type, c_type_member, obj_type, objp) \
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OBJECT_IS_TYPE(objp, obj_type) \
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? OBJECT_CAST(c_type, c_type_member, (objp)) : NULL
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#define OBJECT_IS_TYPE(obj, type_ptr) ((obj)->ob_type == (type_ptr))
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struct object;
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struct object_attrib;
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enum object_type_flags {
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OBJTYPE_INIT = 0x01u,
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};
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struct object_ops {
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kern_status_t (*destroy)(struct object *obj);
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};
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struct object_type {
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enum object_type_flags ob_flags;
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char ob_name[32];
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unsigned int ob_size;
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unsigned int ob_header_offset;
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struct vm_cache ob_cache;
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struct queue_entry ob_list;
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struct object_ops ob_ops;
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};
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struct object {
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uint32_t ob_magic;
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struct object_type *ob_type;
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spin_lock_t ob_lock;
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unsigned int ob_refcount;
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unsigned int ob_handles;
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struct queue_entry ob_list;
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} __aligned(sizeof(long));
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extern kern_status_t object_bootstrap(void);
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extern kern_status_t object_type_register(struct object_type *p);
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extern kern_status_t object_type_unregister(struct object_type *p);
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extern struct object *object_create(struct object_type *type);
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extern struct object *object_ref(struct object *obj);
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extern void object_deref(struct object *obj);
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extern void object_lock(struct object *obj);
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extern void object_unlock(struct object *obj);
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extern void object_lock_irqsave(struct object *obj, unsigned long *flags);
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extern void object_unlock_irqrestore(struct object *obj, unsigned long flags);
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#ifdef __cplusplus
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}
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#endif
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#endif
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